 /*******************************************************************************
  * Copyright (c) 2000, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.views.navigator;

 import java.util.ArrayList ;
 import java.util.Iterator ;
 import java.util.List ;

 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.StructuredViewer;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.actions.MoveProjectAction;
 import org.eclipse.ui.actions.MoveResourceAction;

 /**
  * The ResourceNavigatorMoveAction is a resource move that aso updates the navigator
  * to show the result of the move.
  * It also delegates to MoveProjectAction as needed.
  *
  * @since 2.0
  */
 public class ResourceNavigatorMoveAction extends MoveResourceAction {
     private StructuredViewer viewer;

     private MoveProjectAction moveProjectAction;

     /**
      * Create a ResourceNavigatorMoveAction and use the supplied viewer to update the UI.
      * @param shell Shell
      * @param structureViewer StructuredViewer
      */
     public ResourceNavigatorMoveAction(Shell shell,
             StructuredViewer structureViewer) {
         super(shell);
         PlatformUI.getWorkbench().getHelpSystem().setHelp(this,
                 INavigatorHelpContextIds.RESOURCE_NAVIGATOR_MOVE_ACTION);
         this.viewer = structureViewer;
         this.moveProjectAction = new MoveProjectAction(shell);
     }

     /* (non-Javadoc)
      * Method declared on IAction.
      */
     public void run() {
         if (moveProjectAction.isEnabled()) {
             moveProjectAction.run();
             return;
         }

         super.run();
         List destinations = getDestinations();
         if (destinations != null && destinations.isEmpty() == false) {
             IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
             List resources = new ArrayList ();
             Iterator iterator = destinations.iterator();

             while (iterator.hasNext()) {
                 IResource newResource = root
                         .findMember((IPath) iterator.next());
                 if (newResource != null) {
                     resources.add(newResource);
                 }
             }

             this.viewer.setSelection(new StructuredSelection(resources), true);
         }

     }

     protected boolean updateSelection(IStructuredSelection selection) {
         moveProjectAction.selectionChanged(selection);
         return super.updateSelection(selection)
                 || moveProjectAction.isEnabled();
     }

 }

